## Question 11:

1## Answer:

No answer provided yet.If 1.648 is the mean of some measurement, then the standard deviation is also needed to provide the z-score, assuming it comes from a normal distribution.You might mean, what’s the area or percentile from the normal distribution for a z-value of 1.648? If so, you can find the area under the curve for a z-value of 1.648 using the z to percentile calculator.

For two-tailed area, the answer is 90.6% rounded to 3 decimal points.